The wireless FREEDOM you've been waiting for.Cordless stereo headset is specially designed for iPod nano second and third generation. Simply plug the iPod nano into the exclusively designed slot and you can enjoy the music anywhere, anytime. No battery is required. These headphones enhance your experience with your iPod nano in a whole new way. Your iPod shuffle or 2nd and 3rd generation Nano will plug directly into to headphones for easy wire free listening. All other MP3 players have to use a connecting cord (included) that plugs into the bottom of the headphones.. Completely wireless for iPods listed above. No batteries required. Just slide your MP3 player into the slot on the ear cup. Soft full sized ear cups comfortably surround your ears. Adjustable headband fits snugly over your head. Complete access to your MP3 controlsFeatures include:Turns your new iPod nano into a cordless MP3 headset Collapsible design for easy storage Exceptional stereo sound No battery required 3.5mm jack for your computer, portable CD player or any other music device Accommodating thick hygienic ear pads Full access to iPod nano click wheel and display Lightweight with adjustable headband iPod Compatibility Nano 2nd and 3rd gerneration or shuffle.Measures 8.5 x 7 x 3 inches